Be aware of how much caffeine you are ingesting; too much can make you feel jittery.
Decongestants can make people feel jittery or keep them from sleeping.
It is also possible for people with GAD to feel shaky or jittery.
Mental signs: Meth users may appear jittery or energetic.
If you feel jittery about making your own fondant, considering purchasing it in pre-mixed tubs instead, available at most cake decorating and pastry supply stores.
White sugar may also produce jittery feelings from the rise and fall of blood glucose and insulin that mimic panic attacks.
Jittery feeling - You will feel nervous and jittery as the nicotine starts to leave your body.
Rhyn asked, the feeling of doom making him jittery.